半干旱灌区
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irrigated arid area 干旱灌区
irrigated field in arid area 干旱灌区
·2,447,543篇论文数据，部分数据来源于NoteExpress
The seepage of irrigation water is an important source of groundwater in the irrigated farm region of arid area Northwest China.
西北干旱地带农业区的灌溉水入渗是地下水补给的重要途径。
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